Cultivator.



E. HMLN.

GULTVATOR. APPLIOATIQN FILED JUNE 15, was.v

LTXVATR.

Specification oi Letters Patent.

Patented lfi'firoii 9, 1909.

Application filed :func 15, l'. Serial No. 38,524.

To all whom it may concern:

Be it known that I, Ennis HAIMAN, it citizen ol the United States, residing et Cleveland, in the county of Cuyahoga and State of Ohio, have invented certain new and usef ful Improvements in Cultiviitors, and do declare that the following is a full, clear, and exact description of the invention, which will enable others skilled in the art to which it epperteins to inalie iind use the saine. My invention relates to improvements in cultiviitors, and the invention Iconsists in the. construction and conihiiiationof parts, suhstantiiilly iisshowii ond `lesciilied and particulzirly pointed out in the clainis.

in' the accompanying drawings, Figure l is n perspective View of the front end of a cultiviitor, and Fig. 2 is it sectional plan view thereof on ii line corresponding to the middle of the tooth `loais longitndinall` Figs. 3 und 4 are perspective views, ri. spectively, of the upper and lower hinge oi clamp plates, and Fig. 5 is ii cross section on line vir---Y, Fig. 2;

Fig. 6 is e plan of a hlanl; I

from which-thc respective hinge and chimp plates are formed. v

In the. drawings thiis shown, represents the central or draft bor of the cultiifntor,

g direetly opposite eeeli other against sind bnr,

and the two side hars.

C and D are up er find lower hinge oi clamp plates, Whici are bolted upon on: through central baril. and eord the necessary draft engagement and support for tho said side liars. The said plates C and l) are identical iii all essential details except that in this instance one is shown as having square holt holes 2 and the other coinciding' round holt holes 3, so that the bolts 4 hy which they aro clamped together upon har il und which have square Shanks 5, will in the square holes 4;- and prevent turning when the nuts 6 nre fastened thereon. Otherwise the seid plaies might he inode identical in those particulars, also end inter ,changeahility oi plates hee evident ad vantage. Both plates liz-ive iiriiges 7 along their iront edge projecting inward towolrd ezich other when the ports are assembled, and coming into such relaiii'in with the bolts 4 that when 'the substantially hooi( shaped shsiilis 8 of the side lia-rs B nrc en geged shout or upon said bolts between said nliites the seid {longe-s will eon'line the said oars from Without in working position, sind they cannot 1oe disconnected nor removed oy aecident or otherwise without iirst ieleasii'ig the seid plates C and l). lt `will he observed also that the seid i'ianges 7 are curved at a, point opposite the bolts 4l and extend for enough around each end ofsaid plates to prevent working out of said side-hairs, end the engaging portions of the side hers B are siiniliirly curved and fill the speeehetween the bolts and the' said ilangcs 'with their curved or hook shaped ends, the inner eX- treinities thereof projecting Well inward toward the bar A, thus making :i perfect working engagement. Another feature ot' identity between the said platos C and D is the right angled projection l0, which iscut bodily troni thc rear portion of tliepliite by incision 12, Fig. 6, and lient :it right ongles inward, and hns :i holt hole il?, through the saine. In both plates tho suid projection l0 is exactly parallel with one edge of iotch l5 centrally across 'ilniige 7, and both.

1 said iiiojection and said odge are :idiipted to hear against the Sonie ilat surface oi hor )i :ind hence are in iilincnient. Then -as the smid plates are placed in position upon the said har il, one shove and the other below the saine, the respective inojections i0 come one ciitendii'ig upward und the other downward, und with the holes ltherein register ing' with transverse hole lo in the har and adapted to receivithe holt li. Said holt elzinips the sind projections und hirifirmly together :ind thus fixes the sold plates rigidly upon the seid hai' and prevents possiblc slipping ol the plates thereon is Well as iiii'ording a i'irni engiigeiiient ier hars li. The square edged witches i5 centrally in the llanges 7 iit snugly upon the bai l and contribute to the lateral support oi.' said plates upon the said bei?.

flic lier ii may have one or more holes lo adapted to be engaged by the tiansvc se ooit le, so that the side hars may he adjiised bach nini loith more or los the seid central har, and tivo such ,holes shown iii-this instance.

'There is rinitsrial advantage iii the ing constrnetioi hoth from a inai'iu'ii point oi' View and from point ol w the ciiitivator. `For inanotait dures the invention lo ell blank in Fig. i' .sh-inve, and th,

- side rhers end inward projections 1() at their ens and facilitates manufacture, 'und for the cultivator it affords as rigid and firm an engagement u on the central bar for the side bers es can e conceived. The Whole effect ofthe oppositely enveged and clamped plates is to strengthen rat ier than weaken the centra'l bar, and the construction is such as to promote easywand speedy assembling of the parts and all said parts are machine made ready for use.

1. A cultivator having a central bar and side-bars, in combination with hinge plates for the side-bars engaged top and bottoni across the edges of said central har, said plates having inwardly extending` lianges along their front edges to coninc the said rear edges hearing against epliosite sides of sind central bar, a bolt engager, through both l said projections 10 and seid central bar, and Eivots between said plates on which said sidears nrc hinged.

2. As a new article of manufacture and sale, a hinge plate for the side bars of culti- Vaters constructed with a Harige 7 about its front edge and a notch 15 across the middle of said flange, :ind provided with bolt holes ELlAS liAllll AN E. l. Fisnn'le., lt. B. Mosnn. 

